Higgsino dark matter in a SUGRA model with nonuniversal gaugino masses

Chattopadhyay, Utpal ; Roy, D. P. (2003) Higgsino dark matter in a SUGRA model with nonuniversal gaugino masses Physical Review D - Particles, Fields, Gravitation and Cosmology, 68 (3). 033010_1-033010_8. ISSN 1550-7998

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Official URL: http://prd.aps.org/abstract/PRD/v68/i3/e033010

Related URL: http://dx.doi.org/10.1103/PhysRevD.68.033010

Abstract

We study a specific SUGRA model with nonuniversal gaugino masses as an alternative to the minimal SUGRA model in the context of supersymmetric dark matter. The lightest supersymmetric particle in this model turns out to be a Higgsino-dominated instead of a bino dominated lightest neutralino. The thermal relic density of this Higgsino dark matter is somewhat lower than the cosmologically favored range, which means that it may be only a subdominant component of cold dark matter. Nonetheless, it predicts favorable rates of indirect detection, which can be seen in square-km size neutrino telescopes.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:42779
Deposited On:06 Jun 2011 11:13
Last Modified:17 May 2016 23:57

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